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Acer aqspire When I push power, the LED lights but the computer,s only action is to "beep" every 3 seconds

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Re: Acer aqspire

Check your RAM there is dust or no correctly working

Posted on Oct 17, 2007

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HP Pavilion Media Center m8200n upon turning on it only beeps, and led light blinks twice contiuously, with no signal to monitor?

Power On LED Carl?

I ask that because most Power Supply's that HP uses, have an LED on the back also.
(HiPro, Delta, and Bestec)

The LED is now working as a diagnostic LED.
(Light Emitting Diode, so stating LED light, is redundant)

The beeps you hear are BIOS Beep Codes.
The computer's way of telling you something is wrong, and an area to look into for it.

As stated, it's a Code.
One example;
3 Short beeps,...pause, 3 Short beeps,...pause, etc.

With the Power On LED blinking 2 times, then a pause; indicates,

A) Computer is dirty inside. To include Power Supply

Computer is unplugged from power, Anti-Static Procedures are FOLLOWED; and a can or two of compressed air for computers, is used to clean it out.

I have a procedure to follow if you are interested.

B) Processor (CPU) fan is not seated correctly, and/or is Not functioning, or functioning properly.

Case open, and computer on; see if the Processor fan is;
1) Spinning

2) Looks to be spinning the proper speed.

No, I don't expect you to count the Revolutions per Minute, lol!
My reference is a general one. If the Processor fan looks to be turning slowly, you'll know it

3) Processor fan spins intermittently. Spin, slow down, stop....spin, etc.

C) Thermal Paste in-between Processor, and the finned Heatsink that sits on it, has dried up.
Lost it's thermal conductivity properties.

Top of Processor, and Bottom of Heatsink; MUST be THOROUGHLY cleaned, and fresh, new Thermal Paste applied.

I have a procedure for this too.

I can guide you step by step.

Post back in a Comment.


How to > Adding/Replacing Hardware > Opening the PC Case,

Apr 03, 2013 | PC Desktops

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Long and short beeps error?

That's called a "POST" (Power On Self Test) code. I can't find a list of those codes, so I'm guessing based on the symptoms here that you have a dead CPU. Did you have a power surge or something just before it started doing this? One thing you try is taking the cover off, unplugging it from the wall outlet, push the power button to drain the capacitors, then remove and re-seat the memory, then put the cover back on and plug it back up and try that. There's a small chance that something has happened to make the memory come loose or something, but that's not likely considering the problem you are describing. Most likely is that your CPU is dead, which means it's time to get a new computer. A good computer shop can transfer your files from your dead computer to your new computer using a USB hard drive adapter.

Dec 01, 2012 | Acer Aspire M1202U1850A PC Desktop

1 Answer

Aux power led light is amber on dimension E521

I think your problem is your memory or video card.

Below are some steps that I recommend.

When you plug in the power cord is there any lights whatsoever on the computer?

When you press the power button do you hear fans running, hard drive spinning, lights on the computer, hear any beeps or lights constantly blinking, hear the DvD/CD drive click and the light on the drawer of the DvD/CD turn on for a second or two? If so the laptop is trying to boot or may have booted, but the screen is not showing for some reason.

Beep tones and blinking lights tells the technicians what is going on with the computer and why it is not booting. Most times it's a motherboard issue when you hear beeps or blinking lights continuous. Most times the problem is with the memory or Video Card. Count the Blinking Lights or Beeps and take note of their pattern (1 Long or 1 Long followed by 2 Short).

Maybe your power cord is bad if you don't get anything to happen whatsoever when you press the power button.

Maybe you have a Static Charge Buildup. Remove the Power Cord, then Press and Hold the power button for 30 seconds. After 30 seconds plug the power cord back in and hit the power button to see if it boots.

Maybe your memory is bad or the memory slot is bad.

Remove the Power Cord, Open the Case and remove one of the memory chips. Set the chip aside then try rebooting the computer. If it boots, then you know the memory chip you set aside is bad so mark an x on it with an ink pen. If it fails to boot then move the chip to the next memory slot and try rebooting. If it fails take the chip out and set it aside, then put the other chip in and try booting it in both slots. If it boots, just to verify that the chip set aside is bad, mark an x on it and put it into the open memory chip slot and try booting.

Maybe your power supply is bad. Sometimes there is enough power to make the power light or some other lights come on but not enough power to make the fan turn on or hard drive spin.

Below are links and info I found from Dell's Website based on your model.

Controls and Lights Front of computer:

Power button - push button

Power light
green light - Blinking green in sleep state; solid green for power-on state.
amber light - Blinking amber indicates a problem with the power supply inside the computer. If the system cannot boot and there is a solid amber light, this indicates a problem with the system board (see "Power Problems" in your Owner's Manual).

Diagnostic lights
four lights on the front panel (see Diagnostic Lights.)

Standby power light
AUX_PWR_LED on the system board

Hard-drive activity light
green light - When the computer is reading data from or writing data to the hard drive.

LAN indicator light

green light - Solid green indicates that a LAN (local area network) connection is established.

Jun 03, 2012 | Dell Dimension E521 (D10E16) PC Desktop

1 Answer

I have installed a new motherboard in an acer case. The power cable from the switch on the front of the case will not connect to the board. Can anyone help? Thank you

You should read the motherboard manual, for cabling:
1. Power SW
2. Reset SW
3. HDD led
4. Power led - and power led +
5. Speaker

Cabling scheme, also written on the motherboard.

If the Power SW not installed the switch on does not work.
If the Reset SW not installed the switch reset does not work
If the HDD led
not installed the hard drive light (red) is not lit
If the Power led (+/-) not installed the power light (yellow) is not lit
If the Speakers are not installed, when the computer is on the beep sound is not heard.

I hope this information helps.


Oct 15, 2011 | PC Desktops

2 Answers

I have an acer AM5621 that will not power up. When you push the power button it attempts to boot, the light flashes on, I can hear the fan starting and then goes off.

Here are some steps I would take to resolve the issues:1) Remove battery
2) Open computer to access RAM (usually there is just a RAM door on the bottom of the computer)
3) Remove RAM and attempt to power on computer.If you get a series of beeps from the computer then you most likely have bad RAM. Replace one stick and repeat. If you don't get beeps then it's that stick, otherwise try with second stick.If you don't get a series of beeps then you most likely have a bad motherboard.3) With the battery removed hold down the power button. This will attempt to reset the motherboard back to factory default (in case it's an issue within the BIOS).
If none of the above work then you'll likely have to seek a professional service (i.e. Geek Squad or something similar).
Hope this helps.

Jul 27, 2011 | Acer Aspire AM5621-EQ9300A Core 2 Quad...

1 Answer

I have an Acer Aspire AM1641 U1521A desktop that will not boot up. No beeps, errors or monitor activity. Do I need a new hard drive, motherboard...?

Power Supply. Weak voltage power rail.

Has enough power to light LED lights, maybe spin fans, (Or spin a few times, and stop), but not enough power to turn the Processor on.

1) ALL of the LED lights combined use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use 51 to 125 Watts of power.
Depends on what Processor it is.

Acer Aspire M1641-U1521A?
Intel Pentium Dual Core E2180 (2.0GHz)

Can use up to 65 Watts. (TDP)

The Power Supply used is a 250 Watt unit. Acer isn't known to use high quality power supply's. It's a generic low quality Power Supply.

[ However in all fairness to Acer, if the inside of the computer, AND the inside of the Power Supply, isn't cleaned out on a regular basis as needed, this can cause Power Supply failure also.

Use a can of compressed air for computers, with the plastic 'straw' attached. Hold onto the can with one hand, use the other hand to hold onto the straw, shoot air through the ventilation holes of the Power Supply's case. (Computer unplugged from power)

Come around to the back of the computer, use the air to clean the Power Supply's fan blades, center hub, and surrounding cage. (Shroud)

When the cooling components for the Power Supply, (Fan and Heatsinks used inside), become clogged with dust, dirt, etc., the cooling capacity drops tremendously.

The Power Supply overheats.
Heat = Wasted Energy

The Power Supply strains to keep up with the call for power, but eventually cannot, and fails.
Components inside the Power Supply fail ]

Replace the Power Supply.

Sep 28, 2010 | Acer Aspire M1641-U1521A PC Desktop

3 Answers

Computer will not start

It all depends how many beeps there were.
Diagnostic LED Explanation Table Number of 1-second red LED blinks followed by 2-second pause, then repeats:
2-processor thermal protection activated
3-processor not installed
4-power supply failure
5-memory error
6-video error
7-PCA failure (ROM detected failure prior to video)
8-invalid ROM, bootblock recover mode

I have only really come across 4 beeps = order new Power Supply or 5 Beeps = reseat the memory and hope it works



Apr 15, 2010 | HP Compaq dc7600 Small Form Factor PC...

3 Answers

Looking for manual for acer aspire m1201. its on complete lock up powers up and thats it

Please go thru this link to find the manual.

Feb 07, 2010 | Acer Aspire M1201 Athlon X2 320 Gb PC...

1 Answer

My d530 minitower powers off unexpectedly and red lights starts to blink on System's LED//

Hi Kindly let me know how many times the red light blinks
Condition Code Service Actions Processor thermal protection activated. Power LED blinks red twice, once a second, followed by a two second pause.
  1. Make sure the computer air vents are not blocked and that the cooling fan is running.
  2. Open the hood, press the power button, and see if the processor fan spins. If the fan is not spinning, make sure the fan cable is plugged into the cable header on the system board, and that the fan is properly installed and seated.
  3. If the fan is plugged in and seated properly, but is still not spinning, replace the processor fan.
  4. Reseat the processor heatsink and make sure the fan assembly is attached to the heatsink properly.
Processor is not installed. Power LED blinks red three times, once a second, followed by a two second pause.
NOTE: This condition indicates a missing or improperly installed processor, not a defective one.

Make sure there is a processor in the system. Reseat the processor and verify that it is installed properly. Power failure (power supply is overloaded) Power LED blinks red four times, once a second, followed by a two second pause.
  1. Check the voltage selector, located on the rear of the power supply, is set to the correct voltage (the correct setting depends on the region).
  2. Open the hood and make sure the 4-wire power supply cable is fully connected to the power connector on the system board.
  3. Check if a device is causing the problem by removing all attached devices (such as disk drives and expansion cards), then power on the system. If the system enters POST, power off and replace one device at a time, repeating the procedure until the system power failure reoccurs. Replace the device that caused the failure, then replace each of the other devices and confirm that they are functioning properly.
  4. If you cannot isolate the failure to a specific device in the previous step, replace the power supply. **
  5. Replace the system board.*
Pre-video memory error. Power LED blinks red five times, once a second, followed by a two second pause, and five simultaneous beeps are sounded
  1. Reseat the DIMMs in the memory slots on the system board, then power on the system.
  2. Replace the DIMMs one at a time to isolate the faulty module.
  3. Replace 3rd-party memory with HP memory.
  4. Replace the system board.*
Pre-video graphics error. Power LED blinks red six times, once every second, followed by a two second pause, and six simultaneous beeps are sounded. For systems with a graphic card:

  1. Reseat the graphics card and then power on the system.
  2. Replace the graphics card.
  3. Replace the system board.*

For systems with integrated (on-board) graphics, replace the system board. PCA (system board) failure. ROM detected failure prior to video. Power LED blinks red seven times, once a second, followed by a two second pause, and seven simultaneous beeps are sounded. Replace the system board. Invalid ROM based on bad checksum Power LED blinks red eight times, once a second, followed by a two second pause, and eight simultaneous beeps are sounded.
  1. Reflash the ROM using a ROMPaq diskette.
  2. Replace the system board.*
System does not power on. No beeps or blinks since the system is not functioning. Press and hold the power button for less than four seconds. Perform the following steps depending on whether the hard drive LED turns green.

If the hard drive LED turns green, then:

  1. Make sure the voltage selector (which is located on the back of the power supply) is set to the correct voltage for your region.
  2. Remove the expansion cards one at a time until the 3.3V auxiliary light on the system board turns on. If removing a card turns the light on, replace the card and then see if the system works.
  3. Replace the system board.*

If the hard drive LED does not turn green, then:

  1. Make sure the computer is plugged into a functioning AC power outlet.
  2. Open the hood and make sure the power button is securely fastened in the power harness and that the harness is connected properly to the power connector on the system board. In other words, make sure that the power button is making contact with the power circuit.
  3. Make sure the power supply cables are connected properly to the power connectors on the system board.
  4. Check to see if the 3.3V auxiliary light on the system board is not turned on, replace the power supply. **
  5. Replace the system board.*

Dec 29, 2009 | HP Compaq d530 Convertible Minitower PC...

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